On multiple occasions, Vitalik Buterin has applauded or highlighted experimentation in Ethereum’s Layer 2 ecosystem. One example he’s specifically cited before? Fuel.
Consider how today the biggest L2s, like Arbitrum and OP Mainnet, offer full equivalence with the Ethereum Virtual Machine (EVM). In other words, you can make transactions and run smart contracts on these networks in an identical fashion to how you would on Ethereum.
Fuel, on the other hand, has its own bespoke FuelVM. Instead of the account-based architecture that most L2s have inherited from Ethereum, Fuel uses an unspent transaction output (UTXO) approach centered around assets and transactions.
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